Toilet Map and Postcodes
As part of the project I'm currently working on I've had to do lots of interesting stuff in determining locations of places without being able to rely on accurate physical addresses, GPS, map references etc.

As the project is a personal one my funds have been limited and I've been trying to track down useful mapping information in Australia that is FREE as in beer. No dice. I can find postcode info from Australia Post which is great but I needed to find relational information to be able to say this postcode is close to this one. Then I had an idea. I checked out the ABS Cenus data and found they have localities broken down to a more discrete level than postcodes and that they have mapped these localities across postcodes. And this locality table is FREE as in beer. So with a bit of smarts and some database work I was able to come up with a FREE Australian postcode to postcode relationship table which now means I can find neighboring postcodes easily. To anyone searching for this, drop me an email and I'll send you a copy.

In following along various leads, Simon pointed me to ToiletMap, an online map of toilets in Australia. Wow is all I can say!